This paper exploits computational modelling of coupled heat and moisture transport to assess a hygrothermal performance of selected building assemblies. Identified moisture and temperature fields during a reference year (Olomouc and Prague, Czech Republic) are then coupled with hygrothermal patterns for optimal biofilm growth: 95 % and 21 °C or 80 % and 25 °C, respectively. Based on that, a number of positive hours within the reference year can be quantified and optimal conditions for biofilm growth can be evaluated. It was shown, that constructions built in Olomouc are more prone to biofilms growth than those built in Prague. Also lime cement plaster is more vulnerable than lime plaster because of its lower moisture diffusivity which allows retaining moisture for a longer period. Generally, the studied wall segments, being composed of solid brick, lime or lime cement plaster and thermal insulation, showed to be resistant to biofilms growth as the numbers of positive hours during the reference years were very low.
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25 July 2019
CENTRAL EUROPEAN SYMPOSIUM ON THERMOPHYSICS 2019 (CEST)
16–18 October 2019
Banska Bystrica, Slovakia
Research Article|
July 25 2019
Hygrothermal modelling of wall assemblies: Quantification of convenient conditions for biofilms growth Available to Purchase
Václav Kočí;
Václav Kočí
a)
1
Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague
, Thákurova 7/2077, 166 29 Prague 6, Czech Republic
a)Corresponding author: [email protected]
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Jiří Maděra
Jiří Maděra
b)
1
Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague
, Thákurova 7/2077, 166 29 Prague 6, Czech Republic
Search for other works by this author on:
Václav Kočí
1,a)
Jiří Maděra
1,b)
1
Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague
, Thákurova 7/2077, 166 29 Prague 6, Czech Republic
a)Corresponding author: [email protected]
AIP Conf. Proc. 2133, 020021 (2019)
Citation
Václav Kočí, Jiří Maděra; Hygrothermal modelling of wall assemblies: Quantification of convenient conditions for biofilms growth. AIP Conf. Proc. 25 July 2019; 2133 (1): 020021. https://doi.org/10.1063/1.5120151
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